patch lower-case-segops

*** 11057,11068 ****
          rp = VTOR4(vp);
  
          /*
           * The way that the address space of this process deletes its mapping
           * of this file is via the following call chains:
!          * - as_free()->SEGOP_UNMAP()/segvn_unmap()->VOP_DELMAP()/nfs4_delmap()
!          * - as_unmap()->SEGOP_UNMAP()/segvn_unmap()->VOP_DELMAP()/nfs4_delmap()
           *
           * With the use of address space callbacks we are allowed to drop the
           * address space lock, a_lock, while executing the NFS operations that
           * need to go over the wire.  Returning EAGAIN to the caller of this
           * function is what drives the execution of the callback that we add
--- 11057,11068 ----
          rp = VTOR4(vp);
  
          /*
           * The way that the address space of this process deletes its mapping
           * of this file is via the following call chains:
!          * - as_free()->segop_unmap()/segvn_unmap()->VOP_DELMAP()/nfs4_delmap()
!          * - as_unmap()->segop_unmap()/segvn_unmap()->VOP_DELMAP()/nfs4_delmap()
           *
           * With the use of address space callbacks we are allowed to drop the
           * address space lock, a_lock, while executing the NFS operations that
           * need to go over the wire.  Returning EAGAIN to the caller of this
           * function is what drives the execution of the callback that we add